// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License").
// You may not use this file except in compliance with the License.
// A copy of the License is located at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// or in the "license" file accompanying this file. This file is distributed
// on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
// express or implied. See the License for the specific language governing
// permissions and limitations under the License.
//
//  GlobalDispatchQueueAsyncInvocationStrategy.swift
//  SmokeInvocation
//

import Foundation

/**
 An InvocationStrategy that will invocate the handler on
 DispatchQueue.global(), waiting for it to complete.
 */
public struct GlobalDispatchQueueSyncInvocationStrategy: InvocationStrategy {
    let queue = DispatchQueue.global()

    public init() {}

    public func invoke(handler: @escaping () -> Void) {
        self.queue.sync {
            handler()
        }
    }
}
